What happened: Ride-hailing giant Didi said it dismissed more than 80 employees last year after its compliance staff found in excess of 60 cases of internal corruption. The employees were laid off for alleged “severe violations” of the firm’s rules, which involved cases of fraud, bribes, or information security breaches. The company handed over the former employees to police for suspected illegal behavior.

Why it’s important: Chinese tech companies have stepped up internal investigations in an attempt to stamp out corruption within their ranks. Tencent, Baidu, Xiaomi, and JD have all launched similar initiatives. Recently, super lifestyle app Meituan sent 90 of its and its partner companies’ employees to the police for suspected wrongdoing. Last year was a difficult one for Didi. The company faced increased public and government scrutiny following the murders of two female passengers who booked rides on its carpooling service Hitch. The company restructured and updated its safety systems in response.